Fabrication of porous polyimide nanoparticles with controllable morphology

Gufan Zhao, Takayuki Ishizaka, Hitoshi Kasai, Hidetoshi Oikawa, Hachiro Nakanishi

Research output: Contribution to conferencePaperpeer-review


Porous polyimide (PI) nanoparticles with pores in the form of spherical void were fabricated by adding a second polymer (e.g., poly(acrylic acid)) as a template, which acted as the source of porosity, via the reprecipitation method. The morphology of porous particles was mainly affected by the miscibility of poly(amic acid) (PAA, precursor of PI) and the template. And the diameter of pores varied in the range of 30-100 nm simply by changing the content of proper template. It provides a unique approach for dielectric applications with extendibility to the ultra-low dielectric constant regime (k <2.0).

Original languageEnglish
Number of pages2
Publication statusPublished - 2005
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: 2005 Sept 202005 Sept 22


Conference54th SPSJ Symposium on Macromolecules


  • Low-k material
  • Miscibility
  • Polyimide
  • Porous nanoparticle
  • Reprecipitation method
  • Template method


Dive into the research topics of 'Fabrication of porous polyimide nanoparticles with controllable morphology'. Together they form a unique fingerprint.

Cite this